ASP.NET Repeater bind List

Question

I am binding a List<string> to a Repeater control. Now I want to use the Eval function to display the contents in ItemTemplate like

<%# Eval("NAME") %>.

But I am not sure what I should use instead of NAME.

score 221 · Accepted Answer · edited May 11 '17 at 00:48

Just use <%# Container.DataItem.ToString() %>

If you are worried about null values you may want to refactor to this (.NET 6+)

<asp:Repeater ID="repeater" runat="server">
    <ItemTemplate>
        <%# Container.DataItem?.ToString() ?? string.Empty%>
    </ItemTemplate>
</asp:Repeater>

Note if you are using less than .NET 6 you cannot use the null-conditional operator Container.DataItem?.ToString()

score 27 · Answer 2 · edited Apr 07 '21 at 11:02

27

Set the ItemType to System.String

<asp:Repeater ItemType="System.String" runat="server">
    <ItemTemplate>
        <%# Item %>
    </ItemTemplate>
</asp:Repeater>

edited Apr 07 '21 at 11:02

Anders Lindén

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answered Jun 26 '13 at 19:37

Kevin

291
3
3

6

Note that the ItemType property is introduced in .NET Framework 4.5. – Jonathan van de Veen Jan 02 '14 at 13:59

score 10 · Answer 3 · answered Feb 16 '11 at 02:19

10

rptSample.DataSource = from c in lstSample select new { NAME = c };

in the repeater you put

<%# Eval("NAME") %>

answered Feb 16 '11 at 02:19

RobertoBr

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2

Some examples use <%# DataBinder.Eval(Container.DataItem, "NAME") %> instead of simply using Eval. What's the difference? – Matthew Lock Feb 28 '13 at 03:13

score 9 · Answer 4 · answered Feb 16 '11 at 01:40

9

This should work just fine:

<ItemTemplate>
   <%=this.GetDataItem().ToString() %>
</ItemTemplate>

answered Feb 16 '11 at 01:40

Nathan Anderson

6,768
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score 4 · Answer 5 · answered Jan 11 '16 at 18:41

A more complete example based on the LINQ provided by @RobertoBr:

In code behind:

List<string> notes = new List<string>();
notes.Add("Value1")
notes.Add("Value2")

repeaterControl1.DataSource = from c in notes select new {NAME = c};
repeaterControl1.DataBind();

On page:

   <asp:Repeater ID="repeaterControl1" runat="server" >
    <ItemTemplate>
        <li><%# Eval("NAME")  %></li>
    </ItemTemplate>
    </asp:Repeater>

Kergorian · Answer 6 · 2020-02-02T21:12:51.763

3

you have to use the databind syntax here or it will not work.

<%# this.GetDataItem().ToString() %>

edited Feb 02 '20 at 21:12

answered Mar 27 '13 at 15:46

Kergorian

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7

score 0 · Answer 7 · answered Dec 29 '17 at 10:51

Inside Item Template

     <ItemTemplate>
 <asp:Label ID="lblName"  runat="server" Text='<%# Eval("YourEntityName").ToString() ==""? "NA" : Eval("YourEntityName").ToString()%>'></asp:Label>
    <ItemTemplate>

or Simply Add inside Item Template

<%# Eval("YourEntityName").ToString() ==""? "NA" : Eval("YourEntityName").ToString()%>

ASP.NET Repeater bind List

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